Question 1 of 6photon energy; atomic energy levels
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Give the expression for E, the energy of a photon, in terms of its frequency f and the Planck constant h.
Using the energy level diagram (Fig. 7.1), where n=1 is at -16.64×10^-19 J and n=4 is at -2.56×10^-19 J, calculate the energy required to…
Define work done by a force.
Starting from W = Fx, with F = ma and v^2 = u^2 + 2ax for a body accelerated from rest (u = 0), what equation for kinetic energy Ek does…
A cyclist and bicycle of total mass 69.0 kg move at 5.5 m/s at the top of a rise. Calculate the cyclist's kinetic energy at the top of the…
The same cyclist and bicycle (total mass 69.0 kg, kinetic energy 1.04x10^3 J at the top) roll down without pedalling to level ground 4.6 m…
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